When you're using an address search box, the address formats with commas separating every field, regardless of whether those fields have been provided when creating the address. For example: Suburb, City, Postcode
If we didn't have city, then it would display in the search box as:
Palm Beach, , 4221
This looks weird to people, and they think it's going to show poorly on connotes etc.
If we could identify missing fields and then not add a comma in, it would format more clearly and look better.